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Thread: 9.5" vs 12"

  1. #1
    Join Date
    Nov 2011
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    Default 9.5" vs 12"

    On a metric car, if I'm running a spring bucket with a 9.5" 1200lb spring in the right front, what would be the difference if I took out the spring bucket and just ran the 12" 1200lb spring?

  2. #2
    Join Date
    Dec 2010
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    104

    Default

    In theory nothing, but you will get a springier or spongy feel on that corner. I would not do it. We always uses shorter springs. 9.5 front, 11 rear.

  3. #3
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    Nov 2011
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    17

    Default

    Quote Originally Posted by dirtman45 View Post
    In theory nothing, but you will get a springier or spongy feel on that corner. I would not do it. We always uses shorter springs. 9.5 front, 11 rear.
    Without any adjustments on the buckets how would I increase ride height. Track is really rough in 1&2
    and when I go in and start hitting those rutts its throwing me up the track. I'm not pushing, its actually bouncing.

  4. #4
    Join Date
    Jun 2012
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    147

    Default shocks

    Shocks
    The springs will raise the ride height
    Your shock package needs updating.

    JMO

  5. #5
    Join Date
    Nov 2011
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    17

    Default shocks

    I'm running Bilistein AK series 40/40 on the front and 30/30 on the rear. I'm not sure of the specs

  6. #6
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    Nov 2011
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    Default

    Rear shocks have a rebound of 158 and compression of 117, and the fronts have a rebound of 197 and compression of 154

  7. #7
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    Dec 2010
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    Default

    Quote Originally Posted by bjcrawfo View Post
    Without any adjustments on the buckets how would I increase ride height. Track is really rough in 1&2
    and when I go in and start hitting those rutts its throwing me up the track. I'm not pushing, its actually bouncing.
    You would have to do something to the bucket or add something inside the bucket to raise it. Why do you not want to change the bucket?

    Also, how old are your shocks?

  8. #8

    Default

    Quote Originally Posted by bjcrawfo View Post
    I'm running Bilistein AK series 40/40 on the front and 30/30 on the rear. I'm not sure of the specs
    The rough track setup from Bilstein is LF 5555F RF 5555F LR 5030R RR 1044R

  9. #9
    Join Date
    Nov 2011
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    17

    Default

    Quote Originally Posted by dirtman45 View Post
    You would have to do something to the bucket or add something inside the bucket to raise it. Why do you not want to change the bucket?

    Also, how old are your shocks?
    Shocks are not that old. Maybe has a season on em' but car was an asphalt car.

  10. #10
    Join Date
    Nov 2012
    Location
    Wisconsin
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    3,119

    Default

    boing... boing... boing...
    Member of the Luxemburg Speedway Hall of Fame
    Class of 2019

  11. #11
    Join Date
    Aug 2011
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    1,774

    Default

    you would be changing the attachment height of the spring on the chassis. changing roll.

  12. #12
    Join Date
    Sep 2012
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    127

    Default

    Quote Originally Posted by balljoint View Post
    you would be changing the attachment height of the spring on the chassis. changing roll.
    how does changing where the spring is mounted affect roll? please explain.

  13. #13
    Join Date
    Dec 2010
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    104

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    Quote Originally Posted by stock car driver View Post
    springier or spongy feel? WTF. explain that one to us please.

    springs are rated on how much it takes to compress them per inch last I knew
    We have 2 near identical cars, one with tall springs and one with short springs. To me the one with the short springs is easier to drive. Maybe springier or spongier isn't the right way to describe it. But the short spring car is just easier for me. The tall spring one seems to wishy washy, to me.

    You can do what you like, I don't care. Just giving my 2 cents.

  14. #14
    Join Date
    Dec 2010
    Posts
    104

    Default

    Quote Originally Posted by stock car driver View Post
    Thanks for your permission.

    Wishy washy, lol..
    You must be small because you can't accept someone elses description without having the last word.

    You are too funny

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